I loaded up the Oreo beta (skipped beta 1, started on beta 2), and it's damned good. You'll be very happy I think with the upgrade. My battery life is better just from that. Quite happy with it.

I skipped beta 1 also, and loaded beta2 on Christmas, I've had my PH1 for over 2 months, with little complaints at all, and now having Oreo on it, It almost feels like a even newer brand new phone! I'm really happy with mine as well.

Even on Sprint my signal and data speeds have improved. I actually clocked 140mbps the other day, which I've never seen on a Sprint network, (had been using HTC 10 and the M8 previously).